要查询S3存储桶中目录的大小,可以使用Athena查询语言结合S3 Select功能来实现。以下是一个使用Python和boto3库的示例代码:
import boto3
# 创建Athena客户端
athena = boto3.client('athena')
# 定义查询语句
query = """
SELECT SUM(size_bytes) AS directory_size
FROM "s3object"
WHERE s3_object_path LIKE 's3://your-bucket-name/your-folder-path/%'
"""
# 执行查询
response = athena.start_query_execution(
QueryString=query,
ResultConfiguration={
'OutputLocation': 's3://your-bucket-name/athena-results'
}
)
# 获取查询执行ID
query_execution_id = response['QueryExecutionId']
# 等待查询执行完成
response = athena.get_query_execution(
QueryExecutionId=query_execution_id
)
status = response['QueryExecution']['Status']['State']
while status == 'RUNNING':
response = athena.get_query_execution(
QueryExecutionId=query_execution_id
)
status = response['QueryExecution']['Status']['State']
# 获取查询结果
response = athena.get_query_results(
QueryExecutionId=query_execution_id
)
# 解析查询结果
result = response['ResultSet']['Rows'][1]['Data'][0]['VarCharValue']
directory_size = int(result)
print("The directory size is: ", directory_size)
请确保您已经安装了boto3库,并替换示例代码中的“your-bucket-name”和“your-folder-path”为您要查询的S3存储桶名称和目录路径。此示例将打印出目录的大小。